According to the WHO, what is the minimum bacteriological standard for drinking water

A. All the samples should not contain coliform organisms

B. 3 consecutive samples of water should not contain any coliforms

C. 3 coliforms in a 100 ml water

D. 1 coliform in a 100 ml water

Correct Answer: All the samples should not contain coliform organisms

Description: (A) All the samples should not contain coliform organisms > All water intended for drinking, E. coli or thermotolerant coliform must not be detectable in any 100 ml sample / bacteria

Category: Social & Preventive Medicine

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